Boiling Heat Transfer Unit

Specifications:

A fully instrumented bench top pool boiling heat transfer unit using low-pressure non-toxic fluid with water-cooled cylindrical glass condenser.
A bench mounted pool-boiling unit comprising a thick walled glass cylinder with electric heater and water-cooled condenser coil. Operates with ozone friendly, low pressure, non-toxic fluid refrigerant.
Internal electric and mechanical safety devices to allow for unsupervised operation by students.
Instrumentation fitted to enable measurement of heat input, surface, liquid and vapour temperatures and condenser water flow rate and temperatures.
Supplied with a detailed experimental operating and maintenance manual giving example experimental results and sample calculations.

Experimental Capabilities:

• Visual demonstration of convective, nucleate and film boiling.
• Study of the heat flux and surface heat transfer coefficient at constant temperature.
• Investigation of the effect of pressure on critical heat flux.
• Study of filmwise condensation and condenser overall heat transfer coefficient.
• Investigation of the pressure- temperature relationship of a pure substance, and the effect of  air in a condenser.

Demonstration of:

• Liquid carry over or priming in boilers.
• Law of partial pressures